74880045

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 145664640

約数和(自身を除く): 70784595

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 81, 95, 111, 135, 171, 185, 263, 285, 333, 405, 513, 555, 703, 789, 855, 999, 1315, 1539, 1665, 2109, 2367, 2565, 2997, 3515, 3945, 4995, 4997, 6327, 7101, 7695, 9731, 10545, 11835, 14985, 14991, 18981, 21303, 24985, 29193, 31635, 35505, 44973, 48655, 56943, 74955, 87579, 94905, 106515, 134919, 145965, 184889, 224865, 262737, 284715, 404757, 437895, 554667, 674595, 788211, 924445, 1313685, 1664001, 2023785, 2773335, 3941055, 4992003, 8320005, 14976009, 24960015, 74880045]

約数ペア:

[(1, 74880045), (3, 24960015), (5, 14976009), (9, 8320005), (15, 4992003), (19, 3941055), (27, 2773335), (37, 2023785), (45, 1664001), (57, 1313685), (81, 924445), (95, 788211), (111, 674595), (135, 554667), (171, 437895), (185, 404757), (263, 284715), (285, 262737), (333, 224865), (405, 184889), (513, 145965), (555, 134919), (703, 106515), (789, 94905), (855, 87579), (999, 74955), (1315, 56943), (1539, 48655), (1665, 44973), (2109, 35505), (2367, 31635), (2565, 29193), (2997, 24985), (3515, 21303), (3945, 18981), (4995, 14991), (4997, 14985), (6327, 11835), (7101, 10545), (7695, 9731)]